/* ===== 使用协议页 专属样式 · 作用域 .page-disclaimer ===== */
.page-disclaimer {
  --dc-paper-ink: #1A2148;
  --dc-paper-sub: #333A61;
  --dc-amber-deep: #A96A12;
  --dc-rule: rgba(20, 26, 62, .14);
  padding-bottom: clamp(56px, 8vw, 112px);
}

/* 面包屑 */
.page-disclaimer .dc-crumbs {
  margin: calc(var(--gap) * 1.3) 0 calc(var(--gap) * 1.8);
  font-size: var(--fs-12);
}

/* 首屏 */
.page-disclaimer .dc-head {
  margin-bottom: clamp(30px, 5vw, 60px);
}

.page-disclaimer .dc-head__kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .34em;
  color: var(--muted);
  margin: 0 0 14px;
}

.page-disclaimer .dc-head__title {
  font-size: var(--fs-56);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: .02em;
  color: var(--ivory);
  margin: 0 0 20px;
}

.page-disclaimer .dc-head__lede {
  max-width: 46ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 clamp(26px, 4vw, 42px);
}

/* 版本刻度带 */
.page-disclaimer .dc-scale {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-disclaimer .dc-scale__end {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-disclaimer .dc-scale__end--cur {
  color: var(--amber);
}

.page-disclaimer .dc-scale__track {
  position: relative;
  flex: 1 1 auto;
  min-width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--hair) 0%, var(--hair) 55%, var(--amber) 100%);
}

.page-disclaimer .dc-scale__dot {
  position: absolute;
  right: 0;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(243, 177, 74, .18);
}

/* 顶部抽象图 */
.page-disclaimer .dc-figure {
  margin: 0;
}

.page-disclaimer .dc-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 左右分屏 */
.page-disclaimer .dc-body {
  align-items: start;
  grid-template-columns: minmax(0, 1fr);
}

/* 目录 */
.page-disclaimer .dc-toc {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-disclaimer .dc-toc__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .28em;
  color: var(--muted);
  margin: 0 0 12px;
}

.page-disclaimer .dc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-disclaimer .dc-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  font-size: var(--fs-12);
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .dc-toc__link:hover {
  color: var(--ivory);
  border-color: var(--cyan);
}

.page-disclaimer .dc-toc__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .dc-toc__n {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--amber);
}

.page-disclaimer .dc-toc__link[data-active="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-disclaimer .dc-toc__link[data-active="true"] .dc-toc__n {
  color: var(--ink);
}

/* 纸面正文 */
.page-disclaimer .dc-sheet {
  background: var(--paper);
  color: var(--dc-paper-ink);
  padding: clamp(24px, 3.8vw, 56px) clamp(20px, 3.4vw, 56px);
}

.page-disclaimer .dc-clause {
  position: relative;
  counter-reset: pt;
  padding: clamp(24px, 3.4vw, 40px) 0;
  border-top: 1px solid var(--dc-rule);
}

.page-disclaimer .dc-clause:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .dc-clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-disclaimer .dc-clause__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--dc-amber-deep);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  transition: color .2s var(--ease);
}

.page-disclaimer .dc-clause__num:hover {
  color: #7C4E0C;
}

.page-disclaimer .dc-clause__num:focus-visible {
  outline: 2px solid var(--cyan-deep);
  outline-offset: 4px;
  border-radius: 2px;
}

.page-disclaimer .dc-clause__title {
  font-size: var(--fs-28);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: .01em;
  margin: 0;
  color: #141A3E;
}

.page-disclaimer .dc-clause__lede {
  max-width: 42ch;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: #2D3358;
  margin: 0 0 16px;
}

/* 要点列表：等宽编号 */
.page-disclaimer .dc-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .dc-points > li {
  counter-increment: pt;
  position: relative;
  padding: 9px 0 9px 46px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--dc-paper-sub);
  border-top: 1px solid rgba(20, 26, 62, .09);
}

.page-disclaimer .dc-points > li:first-child {
  border-top: 0;
}

.page-disclaimer .dc-points > li::before {
  content: counter(pt, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--dc-amber-deep);
}

.page-disclaimer .dc-inline {
  color: #0A5A60;
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 90, 96, .45);
  padding-bottom: 1px;
  transition: border-color .2s var(--ease);
}

.page-disclaimer .dc-inline:hover {
  border-bottom-color: #0A5A60;
}

/* 子分组 */
.page-disclaimer .dc-sub {
  margin-top: 18px;
}

.page-disclaimer .dc-sub__t {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: #6B5A33;
  margin: 0 0 4px;
}

/* 结尾说明块 */
.page-disclaimer .dc-end {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(20, 26, 62, .2);
  background: rgba(214, 201, 178, .5);
  display: grid;
  gap: 16px;
}

.page-disclaimer .dc-end p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: #2D3358;
}

.page-disclaimer .dc-end__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-disclaimer .dc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-14);
  font-weight: 600;
  color: #0A5A60;
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 90, 96, .4);
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .dc-link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: var(--fs-12);
}

.page-disclaimer .dc-link:hover {
  color: #063F44;
  border-bottom-color: #063F44;
}

.page-disclaimer .dc-link:focus-visible {
  outline: 2px solid var(--cyan-deep);
  outline-offset: 3px;
}

/* 桌面端：目录吸顶并改为纵向轨道 */
@media (min-width: 960px) {
  .page-disclaimer .dc-body {
    grid-template-columns: minmax(176px, 22%) minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 56px);
  }

  .page-disclaimer .dc-toc {
    position: sticky;
    top: 104px;
    margin-bottom: 0;
  }

  .page-disclaimer .dc-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-disclaimer .dc-toc__link {
    border-color: transparent;
    border-radius: 0;
    padding: 6px 0;
    font-size: var(--fs-14);
  }

  .page-disclaimer .dc-toc__link:hover {
    color: var(--cyan);
  }

  .page-disclaimer .dc-toc__link[data-active="true"] {
    background: transparent;
    color: var(--cyan);
  }

  .page-disclaimer .dc-toc__link[data-active="true"] .dc-toc__n {
    color: var(--amber);
  }

  .page-disclaimer .dc-clause {
    padding-right: 40px;
  }

  .page-disclaimer .dc-clause::after {
    content: "";
    position: absolute;
    right: 0;
    top: clamp(24px, 3.4vw, 40px);
    width: 1px;
    height: 72px;
    background: linear-gradient(180deg, var(--dc-amber-deep), rgba(169, 106, 18, 0));
  }
}

@media (min-width: 1280px) {
  .page-disclaimer .dc-scale {
    max-width: 640px;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-toc__link,
  .page-disclaimer .dc-clause__num,
  .page-disclaimer .dc-link,
  .page-disclaimer .dc-inline {
    transition: none;
  }
}